9025fe00f8aa001d12b7a271b0f377c9

Android平台对应的高欢堂所编写的书籍的对应源代码 可以不用敲键盘了

package com.misoo.pkcc;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.LinearLayout;
import android.widget.TextView;

public class ac01 extends Activity implements OnClickListener {
	private final int WC = LinearLayout.LayoutParams.WRAP_CONTENT; 
	private final int FP = LinearLayout.LayoutParams.FILL_PARENT; 
	  
	private mp3Player mp3_player;
    private myButton btn, btn2, btn3;
    public TextView tv;

    public void onCreate(Bundle icicle) {
                super.onCreate(icicle);
                mp3_player = new mp3Player(this);

                LinearLayout layout = new LinearLayout(this);
                layout.setOrientation(LinearLayout.VERTICAL);
                               
                btn = new myButton(this);
                btn.setId(101);
                btn.setText("play");
                btn.setOnClickListener(this);
                LinearLayout.LayoutParams param = 
                    new LinearLayout.LayoutParams(btn.get_width(), 
                    		   btn.get_height()); 
                param.topMargin = 10;
                layout.addView(btn, param); 
                
                btn2 = new myButton(this);
                btn2.setId(102);
                btn2.setText("stop");
                btn2.setOnClickListener(this);
                layout.addView(btn2, param);
                
                btn3 = new myButton(this);
                btn3.setId(103);
                btn3.setText("exit");
                btn3.setOnClickListener(this);
                layout.addView(btn3, param);
                
                tv = new TextView(this);
                tv.setText("Ready");
                LinearLayout.LayoutParams param2 = 
                   new LinearLayout.LayoutParams(FP, WC); 
                param2.topMargin = 10;
                layout.addView(tv, param2);
                setContentView(layout);      
               }
       	public void onClick(View v) {
		switch(v.getId()){
		case 101:
			mp3_player.start();
	        break;
		case 102:
			mp3_player.stop();
			break;
		case 103:
			finish();
			break;
		}
	}
}